Unable to config s3

[madalinoprea]

Installed the extension, added S3 credentials, hit synchronize button. I got this error in the admin: Latest Message: An error has occured while syncronizing media storages.

I cannot save the credentials because I didn't hit sync. So... this is stopper.

2011-05-25T08:25:15+00:00 ERR (3): 
exception 'Zend_Service_Amazon_Exception' with message 'AWS keys were not supplied' in /opt/magento-community/lib/Zend/Service/Amazon/Abstract.php:92
Stack trace:
#0 /opt/magento-community/lib/Zend/Service/Amazon/S3.php(111): Zend_Service_Amazon_Abstract->__construct('', '', NULL)
#1 /opt/magento-community/.modman/magneto-s3/code/S3/Model/File/Storage/S3/Abstract.php(71): Zend_Service_Amazon_S3->__construct('', '')
#2 /opt/magento-community/.modman/magneto-s3/code/S3/Model/File/Storage/S3.php(63): Magneto_S3_Model_File_Storage_S3_Abstract->__construct(Array)
#3 /opt/magento-community/app/code/core/Mage/Core/Model/Config.php(1254): Magneto_S3_Model_File_Storage_S3->__construct(Array)
#4 /opt/magento-community/app/Mage.php(432): Mage_Core_Model_Config->getModelInstance('core/file_stora...', Array)
#5 /opt/magento-community/app/code/core/Mage/Core/Model/File/Storage.php(111): Mage::getModel('core/file_stora...', Array)
#6 /opt/magento-community/app/code/core/Mage/Core/Model/File/Storage.php(153): Mage_Core_Model_File_Storage->getStorageModel(1, Array)
#7 /opt/magento-community/app/code/core/Mage/Adminhtml/controllers/System/Config/System/StorageController.php(87): Mage_Core_Model_File_Storage->synchronize(Array)
#8 /opt/magento-community/app/code/core/Mage/Core/Controller/Varien/Action.php(420): Mage_Adminhtml_System_Config_System_StorageController->synchronizeAction()
#9 /opt/magento-community/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(253): Mage_Core_Controller_Varien_Action->dispatch('synchronize')
#10 /opt/magento-community/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#11 /opt/magento-community/app/code/core/Mage/Core/Model/App.php(340): Mage_Core_Controller_Varien_Front->dispatch()
#12 /opt/magento-community/app/Mage.php(627): Mage_Core_Model_App->run(Array)
#13 /opt/magento-community/index.php(80): Mage::run('', 'store')
#14 {main}

[rohitindukuri]

magneto-s3/code/S3/Model/File/Storage/S3/Abstract.php tries to read storage media config for s3 keys and bucket name. But, Magento admin wouldn't let you save this config without synchronizing. It is a circular dependency. I hardcoded these values in that file and it worked like a charm. I guess you could revert the hardcoding once you sync media and save the config.

Also note: looks like you cannot have uppercase letters and even underscore in the s3 bucket name.